Question

срочно!!! (4 5/9 - 3 7/12) : (-1 8/27) ​

Answer 1

1) 4 5/9-3 7/12=41/9-43/12=164-129/36=35/36

2) 35/36:27/35=35*27/36*35=27/36=0.75

ответ: 0.75

Answer 2

Решение и ответ:

$\displaystyle \left({4\frac{5}{9}-3\frac{7}{{12}}}\right)\div\left({-1\frac{8}{{27}}}\right)=\boxed{-\frac{3}{4}=-0,75}$

$\displaystyle 1)\;\;4\frac{5}{9}-3\frac{7}{{12}}=4\frac{{20}}{{36}}-3\frac{{21}}{{36}}=3\frac{{56}}{{36}}-3\frac{{21}}{{36}}=\frac{{35}}{{36}}$

$\displaystyle 2)\;\;\frac{{35}}{{36}}\div\left({-1\frac{8}{{27}}}\right)=\frac{{35}}{{36}}\div\left({-\frac{{35}}{{27}}}\right)=\frac{{35}}{{36}}\cdot\left({-\frac{{27}}{{35}}}\right)=-\frac{{27}}{{36}}=-\frac{{9\cdot 3}}{{9\cdot 4}}=-\frac{3}{4}=-0,75$